Internal-combustion engine.



l. B. BROWN.

INTERNAL COIVIBUSTION ENGINE.

APPLICATION FILED FEB. 3, |913.

1,148,657 Patented Aug. 3,1915.

2 SHEETS-SHEET l.

II JIM-HI"- u ne 111707,

Il S

J. B. BROWN.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED FEB.3.1913.

Patented Aug. 8, 1915.

2 SHEETS-SHEET 2.

Application le Februaly 3, i913. :f-

To @ZZ 20j/0m ii' may conce/M2,

Be ii; known thai; L Jesse B. BRGWN, e itizen of ihe iied States,i'esiding zit 243 Buena Vista. street West, gezroit, Misiligan., haveinvented certain new and useful mplovemeiits in internal-Combustiongines, of which the foiloiving is e speeiiieetion.

rThis invention relates to impi'ovements iii internal combusion engines.

The improvements relate particuiei-i;y to an impieved valve strucm-e andmode '0i' operating and centroiiing he same whei'eiiy the chaige is soi'eguieed by e rejection si the surplus that great economy si operationis secured and undue and unnecessary heeting is so eompletely avoided esto avoid the necessity fes a water jacket on engines of the sizeiusualiyadopted for automobile use.

The/objeeis of zhis inventieii aie, iii-st. i0 provide en improvedstructure o valve means which coniiois both the intake and exhaust,cempiiisiiig boh a sieeve and pup pet valve; secondi to provide e valveof the dass described assecieied with en improved veive centi'oiiingmechanism; third, so provide an improved iegiiiaoie veive mechamism thaieffectively consieis the intake whereby any surplus er excess chargewill be rejected and returned to the intake meniioid; fourth? izoprovide en impi'oved mesas fos manually, es by automeiic governo?,ceniifeiiig he iniziie valve ef an iiieiiiei eembusisieii engine while*die engine' iii mission.

'he and fuiiner objects relating ie economies and details ei@ @pei-aime.and censtiuciion viii?. deiiniteiy appear from the de* seiiption tofollow.

accomplish iie objects of my inveniion 'by ldie devices and ineensdesciioed in the following specification.

The invention is clearly defined poiiiied out in the ciaims` S0 much ofan euiomobile engine it, is necessary io iiiustifete io show onepreersed embodiment of invention iuiiv iiiustreied in the accompanyingdeiving, consiitusing peri; of this specification, in Whisk:

Figue is en eievei-ioi view si he menioid side 0f a. fein' ejvindei engishew y oniy so much thereof es is needed Je understeiid my impfevemeiii,*she m ziiiieid i*feelin l'is im eniesged desaii mi line 2 of Fig. Hishowing neeiaiis of the veive means mi one pair of eyinders,

parte aipeeafing in fiiii lines. G0 Hl is an enlarged degeii sectieiiziiView miseri on iiiie 0i' i7 js. ii ind H, Fig. i/ is sie eiiziigeeidemii seciienei View of the @am shaft diivii gems., teken en line iM-4ief Fig. is en eiiimged dee i iierieeiiiei seiioiiei view "ci fsugii `theveive meme7 mi i iiiie eei'ieseoiidiiig to line i .,gs. il and iii. Viis'aii enlarged deiziii view .i-lien on iilie i-i` of H, sheivisgdetsiis ei the 7e sieeve valve eenneciion io me cem shaft. Fig. VH is:fm eiiiefged dei-eil seezieeei view teken en iiiie 7W? ef Fig. ii,shmviiig details of he ziciuating cui: ineens foi iiie puppet valve iothe iiiiaie valve 75 pari @if the veive stem breiten and eeiii-eithi-usi bar i bieieii away. es em i izeii pien view ci" the eeiiiioiiiiius and its pivot. Fig. D is e deiaii sections-.i .9

View on iiiie 9 9 Fig. HL ieiving the me simili connections i101* ediseid eeiiiiei ihres@ bei". en-

ieiged d). vii seeimiei view .une mf of if ii, shewisg fiie eiaeive fermand 35 position of fue cams and 9.5 iii iieii: iei tion i0 th eeiifroi'nrus bei" i@ end iie in tiere iiii'eiviiw" ilixe teken. ieekingjeirfm's ai: iziie ei simiie iiiii'nei'eis isi' pai-ts 'b'iiicugii i iewsConsidering the iiiimbeied mi the drawingsj ine engine cylinders efecas; 'i5 in pairs wish suitable 000i" ij ns 'd ereoie iev These annularports are controlled by the sleeve valve 27 hereinafter to be described,which reciprocates in a cylindrical bore in said valve casing.

The cylinder head 12 is ribbed on the outer surface to facilitatecooling and is re cessed to connect the cylinder to the valve ports.

The puppet valve 8 is controlled by connections to the cam of thecamshaft. The lower end of valve stein 8 is provided with {iange 13retained by cross pin M to receive the thrust of the valve spring 15,which forces the Valve 8 tight into its seat.. An adjusting screw 17 isthreaded into the upper end of' push rod 16. The push rod 16 rests uponAthe control. thrust bar 18 above the cam 19 on the cam shaft 21.

The shortened and curved portion 18 of the controlv thrust bar coactsWith the cam. 20, and owing to its form, When shifted backward andforward, times the action of the puppet valve to vary the amount of theVcharge retained in the engine cylinder from a full charge to suchminimum amount as. the character of the fuel or the particular duty ofthe engine seem to require. The relation of these parts clearly appearsin Fig. X. The cam 19, by its action, opens the intake valve and the cam20A regulates the f closing of the same by coacting with the V8 closesunder compression.

shortened and specially formed part 18 of the control thrust bar 18. Animport-ant part of my invention is these coacting parts 18 and 20.

The sleeve valve 27 is controlled by a crank pin `21 on the cam shaft21. suitable guide pin 28 extends down fr"` in the valve and is securedto plunger 29 b 1 cross pin 8 0. (See Fig. VI). A. hook or slotted part3 1 carried by the loWer end of plunger 29 permits of lateral motion ofthe crank pin 21", Which reciprocates the valve stern 28 and the sleevevalve 2i'. The sleeve valve .27, when in its upper position, opens the-the top. This permits the charge to be taken in. Tvihen the charge istaken in, the sleeve 27 descends after the puppet IlVhen the charge hasbeen fired, the puppet 8 is raised by the cam and opened While thesleeve is in lowest position, and the exhaust then being open the burntgases pass out ofY the exhaust and the engi" ave-ages.

The upper end of eve valve is thickened at 2'?" and the annular er,largementl il at the ninet central 1G tubular 0fuide 9 and securessuitable connections from some convenient part, as means on the steeringcolumn of an automobile.

Gears 32 and are provided to drive the cam shaft from the crank shaft inthe usual way. (See Figs. II and IV.)

The guides for the valve push rods are shown directly supported in. themain casing. These guides can, of course, be supported in various Waysby separate brackets not necessary here to illustrate.

rIhe control thrust bar can be coupled to suitable governor means,making the regulation of the engine automatic. I prefer, however, themanual control of this part and have illustrated that part specically inthis application, and desireto claim the same specifically, as Well asbroadly.

I have described the valve 27 as a sleeve valve. It might also bedescribed as a piston valve, and could readily be adapted to this use,although it was not made hollow, and in defining the same broadly and inthese broad relations, I have referred to it as a piston valve. It is,of course, a-sleeve piston valve. Itdoes not matter Whether the valvesare controlled by cams or eccen- I have shown a preferred formw which IWish to claim specifically in this case, along with broad claims to thegeneric structure, as'Will be seen by reference to the appended claims.

Having thus described my invention,what I claim as new and desire tosecure by Letters Patent is: v

l. In an internal combustion. engine, the combination of a puppet valveprovided with a valve stein, a push rod adjustably secured to the endof. said valve stem, a cam shaft, a pair of cams provided on said camshaft, a control thrust bar interposed between said push rod and saidcams said control bar having a longer portion engaging one .of said camsand supporting the end of said push rod, and a shorter portion having acurved outer end engagingthe other of said cams, and means for actuatingsaid control thrust bar, all coactingJ substantially as described forthe purpose specified.

In an internal combustion engine, the

combination of a puppet valve provided A with a valve stem,

v trol thrust vdescribed for the with a valve stem, a cam shaft, a pairof cams provided on said cam shaft, a control thrust bar interposedbetween said valve stem and said cams said control bar having a longerportion engaging one of said cams and supporting the end of said valvestem, and a shorter portion having a curved outer end engaging the otherof said cams, and means for actuating said control thrust bar, allcoacting substantially as described for the purpose specified. v

3. In an internal combustion engine,the combination of an intake valveprovided a cam shaft, a pair of cams provided on said cam shaft, acontrol thrust bar interposed between said valve stem and said cams saidcontrol bar'having a longer portion engaging one of said cams andsupporting the end of said valve stem, and a shorter portion engagingthe other of said cams, and means for actuating said conpurposespecified. 4. In an internal combustion engine the 'combination of apuppet valve, provlded with a valve stem; a cam shaft; a pair of camsprovided thereon; a control thrust bar and said cylinder,

bar, all coacting substantially as substantially as described and yforthe purpose specified.

5. In an internal combustion engine. the combination with an en'neeyl'inder .and an intake manifold, of a va ve controllingcommunication between said intake manifold thereon,vmeans actuatedl bysaid cams for opening said valve, and an adjustable slide meanslnterposed between said'caris and said valve for varying the time ofclosing said valve to permit the rejection off-al varying pori-.ion ofthe charge into the intakemaniol In witness whereof, I have hereunto setmy hand and seal in the presence fof two witnesses. v JESSE B. BROW.[1.. 5.] A Witnesses: by

FRANCES B. CoNnrJN, FRED S. CONKLIN.

cams: and means foi' reciprocat? a cam shaft with cams

